linux-kernel - [PATCH] cw1200: no need to check return value of debugfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190122152151.16139-29-gregkh@linuxfoundation.org>
Date:   Tue, 22 Jan 2019 16:21:28 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Solomon Peachy <pizza@...ftnet.org>,
        Kalle Valo <kvalo@...eaurora.org>,
        linux-wireless@...r.kernel.org
Subject: [PATCH] cw1200: no need to check return value of debugfs_create functions

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Solomon Peachy <pizza@...ftnet.org>
Cc: Kalle Valo <kvalo@...eaurora.org>
Cc: linux-wireless@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/wireless/st/cw1200/debug.c | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/drivers/net/wireless/st/cw1200/debug.c b/drivers/net/wireless/st/cw1200/debug.c
index 2231ba08bc1f..d94266d9d0b8 100644
--- a/drivers/net/wireless/st/cw1200/debug.c
+++ b/drivers/net/wireless/st/cw1200/debug.c
@@ -371,28 +371,14 @@ int cw1200_debug_init(struct cw1200_common *priv)
 
 	d->debugfs_phy = debugfs_create_dir("cw1200",
 					    priv->hw->wiphy->debugfsdir);
-	if (!d->debugfs_phy)
-		goto err;
-
-	if (!debugfs_create_file("status", 0400, d->debugfs_phy,
-				 priv, &cw1200_status_fops))
-		goto err;
-
-	if (!debugfs_create_file("counters", 0400, d->debugfs_phy,
-				 priv, &cw1200_counters_fops))
-		goto err;
-
-	if (!debugfs_create_file("wsm_dumps", 0200, d->debugfs_phy,
-				 priv, &fops_wsm_dumps))
-		goto err;
+	debugfs_create_file("status", 0400, d->debugfs_phy, priv,
+			    &cw1200_status_fops);
+	debugfs_create_file("counters", 0400, d->debugfs_phy, priv,
+			    &cw1200_counters_fops);
+	debugfs_create_file("wsm_dumps", 0200, d->debugfs_phy, priv,
+			    &fops_wsm_dumps);
 
 	return 0;
-
-err:
-	priv->debug = NULL;
-	debugfs_remove_recursive(d->debugfs_phy);
-	kfree(d);
-	return ret;
 }
 
 void cw1200_debug_release(struct cw1200_common *priv)
-- 
2.20.1